Cutter-grinder.



PATENTED JULY 25. 1905.

D. DIETZ. CUTTER GRINDER.

APPLICATION FILED NOV. 29, 1904-.

2 SHEETS-SHEET 1.

mum. is usunu m Hmmm lmnunrm in ma c No. 795,271. PATENTED JULY 25,1905. D. DIETZ.

CUTTER GRINDER.

APPLICATION FILED NOV. 29, 1904.

2 SHEETS-SHEET 2.

WIT? i m INVEN O/g Alto J6)" UNTTED STATES PATENT OFFICE.

DOUGLAS DIETZ, OF MURPHYSBORO, ILLINOIS, ASSIGNOR OF ONE-HALF TO FRANKIMHOFF, OF MURPHYSBORO, ILLINOIS. I

CUTTER-GRINDER.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed November 29, 1904. Serial No. 234,799.

To all 1072,0722, if; may concern.-

Be it known that I, DOUGLAS DIETZ, a citi- Zen of the United States,residing at Murphysboro, in the county of Jackson, State of Illinois,have invented certain new and useful Improvements in Cutter-Grinders, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

This. invention relates to a cutter-grinder, and particularly to astructure for grinding and sharpening disk cutters.

The invention has for an object to provide an improved construction ofparts for supporting the cutter to be ground and adjusting the same withthe carriage carrying the operating-gear in both horizontal and verticalplanes while the disk is being continuously driven.

A further object of the invention is to provide improved means forsupporting the disk upon its driving-gear and for applying a tensionthereon to hold the edge thereof in proper contact with the grindingmeans.

Other and further objects and advantages of the invention will behereinafter set forth, and the novel features thereof defined by theappended claims.

In the drawings, Figure 1 is a perspective of the invention; Fig. 2, avertical section thereof on the line 2 2 of Fig. 3; Fig. 3, a horizontalsection on the line 3 3 of Fig. 2, and Fig. 4 a detail vertical sectionthrough the cutter and its supporting means.

Like letters of reference refer to like parts in the several figures ofthe drawings.

The letter A designates the frame of the machine and may be of anydesired construction and configurationfor instance, rectangular, as hereshownand is mounted for a sliding movement in avertical plane by meansof the projections A at one end, engaging the tracks or ways A, and asimilar projection A engaging tracks or ways A* at the opposite end ofthe machine. By these means the frame A may be bodily adjusted, and thismay be accomplished by means of the pivoted lever A secured at A to across-bar A upon the under side thereof and adapted to he held in itsadjusted position by means of a latch A engaging a segment A, mountedupon a fixed support A at one side .of the frame.

The frame A is provided with a carriage B, disposed within the same andmounted to reciprocate upon the ways B at the lower portion of theframe, which reciprocation may be accomplished by any desired means forinstance, an operating-lever B pivotally mounted at B upon the upperedge of the frame and connected at B* with the carriage to move thesame, while the parts may be held in their adjusted position by means ofthe latch 13, engaging the segment 13, mounted concentric to the pivotof the lever. Rotatably mounted within the carriage is a drivingshaft 0,which shaft is projected through and has sliding bearing in the end wallA of the frame, while within the carriage suitable bearings are providedin the cross-pieces O and C by which the shaft is held againstlongitudinal movement in the carriage, while in the movement thereof thefree end of the shaft freely slides through the end wall of the frame.The driving-shaft O is provided with a gear O of any suitable characterfor instance, a bevelgear disposed at one side of a bearing-block O,which is provided with a socket to receive the cutterholding device. Thecutter-support comprises a holder D, Fig. 4, upon which the cutter D isadapted to rest, which holder is pro vided at its lower portion with abevel-gear D adapted to mesh with the gear O supported upon the carriagefor the purpose of rotating the cutter. Extending through this holderand gear is a securing-bolt D the lower curved face D thereof beingrested in the socket of the block O to have rotative bearing therein.Above the cutter a clampingblock D is provided, which is formed with areduced bearing portion D, through which the bolt D extends, and isthere provided with a suitable securing meansfor instance, a Wing-nut DFor the purpose of holding the cutter upon its seat and the gears inmesh, as well as for the minor adjustments thereof, an operating-lever Eis pivotally mounted at E upon one side of the machine and providedabove the cutterholder with a socket E through which the portion D ofthe holder passes to form the upper hearing, so that the members of theholder are clamped together and the cutter thus rigidly held. Theoperating-lever at its pivoted end is supported by means of a cross-barE yieldingly mounted at its opposite ends by spring E disposed in thevertical standard E and body of track A For the purpose of adjusting thetension of these springs, as well as the position of. the pivoted end ofthe lever, an adjusting-screw F. is mounted in a fixed bar E adapted tohear at its lower end upon the upper face of the cross-bar F1. Theopposite end of the lever E is provided with a suitable handle E andadapted to be clamped in position by means of a screw-nut or similardevice E, passing through a slotted support F. This support is slottedupon its upper face to permit a horizontal adjustment of the lever andis adapted for vertical adjustment by means of the opposite slottedendsF, which lie in contact with one of the slides A and the standardAf" and may be clamped in position by wing-nuts F Adjacent to the end ofthe frame A a suitable grinding device is mounted for instance, agrinding-wheel (1, mounted in a frame of any ordinary character andadapted to be driven by a shaft G. For the purpose of transmittingmotion to the opposite end of the machine for driving the cu ttcrindependently of the grinding device a pulley G is provided upon theshaft G and has extending therefrom a belt G, extending to a pulley Gupon the counter-shaft G supported above the machine or in any otherdesired position, from which motion is transmitted at its opposite endby means of a pulley G and belt extending to a drum-pulley G, from whichdrum a belt G" conveys power to the pulley G upon the end of the shaftG. If it be desired to drive the parts by hand, it may be accomplishedby means of a crank-handle H, applied to the shaft G, or if steam or anyother motive power is used the same may be applied to the shaft G bymeans of a drivingpulley H, secured to the end thereof.

In the operation of the invention the disk cutter to be ground isapplied upon the support and clamped in position by the block, when itwill be inserted upon the bearingblock supported with the carriage, sothat the bevel-gears will be in mesh. Power being then applied, it willbe seen that the cutter will be rotated in a direction opposite to thatof the grinding-wheel, thus presenting the parts in proper position forthe grinding action. In case of the wear of the grindingwheel or thegrinding of a cutter of different size or character the frame carryingthe carriage may be raised or lowered without interfering with thedriving power, as the belt connection permits of such vertical movementthereof, while the carriage within the frame may also be rociprocated soas to move the same and the cutter carried thereby relative to the fixedgrinding-wheel. These parts are adapted to be adjusted and held in theiradjustment by means of the levers provided for that purpose. Theoperating-lever, by means of its mounting under tension, is adapted toprovide an adjustable top bearing for the cutter and its support andhold them firmly in mesh with the driving-pinion therefor to prevent anyvertical movement of the cutter relative to the grinding-wheel, againstwhich it is yieldingly held, while provision is also made for a limitedadjustment of the lever in a horizontal and vertical plane toward andfrom the grinder to accommodate an adjustment of the carriage, by meansof which the proper edge or finishing may be given to the disk beingground, and the parts are readily secured in their adjusted position bymeans of the set-screw at the pivoted end of the lever and the meansshown for securing the free end thereof. The operating-lever providesmeans for a finer adjustment than can be secured by the frame andcarriage levers and holds the cutter in such position.

, It will be obvious that changes may be made in the details ofconstruction and configuration without departing from the spirit of theinvention as defined by the-appended claims.

Having described my invention and set forth its merits, what 1 claim,and desire to secure by Letters Patent, i-s

1. In a cutter-grinder, a frame, means for Vertically adjusting thesame, a carriage mounted to reciprocate within and inclosed by saidframe, and a lever pivoted upon the frame and pivotally connected toreciprocate said carriage.

2. In a cutter-grinder, a frame, means for vertically adjusting thesame, a carriage mounted to reciprocate within said frame, means carriedupon the frame to reciprocate said carriage, a driving shaft and gearmounted to travel with the carriage, a bearing-block disposed adjacentto said gear, a cutter-support adapted to rest in said block andprovided with a meshing gear, and a yieldingly-mounted operating-leverhaving a bearing therein for the upper portion of said, cutter-support.

3. In a cutter-grinder, a frame, means for vertically adjusting thesame, a carriage mounted to reciprocate Within said frame, means carriedupon the frame to reciprocate said carriage, a driving shaft and gearmounted to travel with said carriage, a bearing-block disposed adjacentto said gear, a cutter-support adapted to rest in said block andprovided with a meshing gear, and a pivoted lever provided with abearing intermediate of its ends for said cutter-support.

4:. In a cutter-grinder, a frame, means for vertically adjusting thesame, a carriage mounted to reciprocate within said frame, means carriedupon the frame to reciprocate the carriage, a driving shaft and gearmounted to travel with said carriage, a bearing-block disposed adjacentto said gear, a cutter-sup port adapted to rest in said block andprovided with a meshing gear, a pivoted lever provided with a bearingintermediate of its ends for said cutter-support, means for yieldinglysupporting the pivoted end of said lever, and means for securing thefree end of the lever in position.

5. In a cutter-grinder, a frame, means for vertically adjusting thesame, a carriage mounted to reciprocate within said frame,

means carried upon the frame to reciprocate the carriage, adriving shaftand gear mounted to travel with said carriage, a bearing-block disposedadjacent to said gear, a cutter-support adapted to rest in said blockand provided with a meshing gear, a pivoted lever provided with abearing intermediate of its ends for said cutter-support, means foryieldingly supporting the pivoted end of said lever, means for securingthe free end of the lever in position, means for vertically adjustingsaid yielding support, and means for ad justing said securing means.

6. In a cutter-grinder, a frame, means for vertically adjusting thesame, a carriage mounted to reciprocate within said frame, means carriedupon the frame to reciprocate the carriage, a driving shaft and gearmounted to travel with said carriage, a bearing-block disposed adjacentto said gear, a cutter-support adapted to rest in said block andprovided with a meshing gear, a pivoted lever provided with a bearingintermediate of its ends for said cutter-support, means for yieldinglysupporting the pivoted end of said lever, means for securing the freeend of the lever in position, means for vertically adjusting saidyielding support, means for adjusting said securing means, a grindingdevice supported at one end of the frame .to engage said cutter, andmeans for driving said grinding device and cutter simultaneously inopposite directions.

7. In a cutter-grinder, a frame, a carriage mounted to reciprocateWithin said frame, means carried upon the frame to reciprocate saidcarriage, a cutter-support mounted upon said carriage, a driving-shaftextending in the path of travel of the carriage and through an end wallof the frame and there provided with a pulley, a grinding devicesupported at one end of the frame to engage said cutter, and means fordriving said grinding device and cutter simultaneously in oppositedirections.

8. In a cutter-grinder, a frame, means for vertically adjusting thesame, a carriage mounted to reciprocate within said frame, means carriedupon the frame to reciprocate said carriage, a cutter-support mountedupon said carriage, driving means therefor, a grinding device supportedat one end of the frame to engage said cutter, a shaft for said drivingdevice, a pulley and belt extending therefrom, a counter-shaft providedwith a pulley for said belt, a drum-pulley at the opposite end of themachine from the grinding device belted to said counter-shaft, and abelted connection to the driving-shaft of said carriage.

9. In a cutter-grinder, a frame slidably mounted in oppositevertically-disposed ways, a lever mounted upon a fixed support forraising and lowering said frame, means for holding said lever in itsadjusted position, and a cutter supported and driven within said frame.

10. In a cuttergrinder, a frame slidably mounted in oppositevertically-disposed ways, a lever mounted upon a fixed support forraising and lowering said frame, means for holding said lever in itsadjusted position, a cutter supported and driven within said frame, asliding carriage for said cutter, an operatinglever for said carriagepivoted upon said frame, and means for retaining said lever in adjustedposition.

11. In a cutter-grinder, a frame slidablythereof.

12. In a cutter-grinder, a frame, a cutter mounted thereon, means forrotating the same, an operating-lever adapted to provide a bearing forthe top of said cutter, a cross-bar upon which said lever is pivotallymounted, and a spring for yieldingly supporting said crossbar.

13. In a cutter-grinder, a frame, a cutter mounted thereon, means forrotating the same, an operating-lever adapted to provide a bearing forthe top of said cutter, a cross-bar upon which said cutter is pivotallymounted,a spring for yieldingly supporting said cross-bar, a tensiondevice bearing upon said cross-bar to adjust the tension of said spring,and means for retaining the free end of said lever.

14. In a cutter-grinder, a frame, a cutter mounted thereon, means forrotating the same, an operating-lever adapted to provide a bearing forthe top of said cutter, a cross-bar upon which said cutter is pivotallymounted, a spring for yieldingly supporting said cross-bar, a tensiondevice bearing upon said cross-bar to adjust the tension of said spring,a slotted support for the free end of said lever, means for securingsaid lever in a horizontal position thereon, and adjustable dependingends from said support.

15. In a cutter-grinder, a cutter-holder comprising asupport providedwith a drivinggear, a bolt extending therethrough, an op positeclamping-block mounted upon said bolt to engage the cutter and providedupon its upper face with a bearing portion, and a member above saidholder adapted to receive the bearing portion of said block.

In testimony whereof I afl ix my signature in presence of two witnesses.

DOUGLAS DIETZ.

Witnesses:

F. IMHOIF, JOHN Q. A. KIMMEL.

